Patents by Inventor David G. Benditt
David G. Benditt has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7967758Abstract: Devices and methods for detecting inadequate tissue perfusion by measuring a parameter other than heart rate such as vascular blood pressure, intracardiac blood pressure, vascular blood flow or tissue perfusion, in addition to or as a substitute for heart rate. Such devices and methods improve the accuracy of determining when and to what degree therapy should be administered to treat inadequate tissue perfusion, such as pre-syncope, syncope, or orthostatic hypotension, particularly in the absence of abnormal cardiac function.Type: GrantFiled: July 12, 2006Date of Patent: June 28, 2011Assignee: Data Sciences International, Inc.Inventors: David G. Benditt, Brian P. Brockway, Richard R. Wilson
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Patent number: 7899526Abstract: Embodiments of the present invention are directed to a physiological monitoring device which is configured to record signals that reflect blood flow and/or blood pressure, and which may also record ECG signals. In one embodiment, a portable monitoring device comprises a plurality of impedance electrodes configured to be coupled to a patient's body and to generate an AC current with an electrical field to detect local electrical impedance of a portion of the patient's body encompassed by the electrical field, the local electrical impedance being a surrogate measure of local blood flow of the portion of the patient's body. At least a portion of the portable monitoring device is configured to be insertable subcutaneously into the patient's body.Type: GrantFiled: May 10, 2005Date of Patent: March 1, 2011Assignee: Regents of the University of MinnesotaInventors: David G. Benditt, Robert F. Patterson, Keith G. Lurie
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Patent number: 7529583Abstract: Devices and methods to reduce the incidence of both false positive and false negative detection of rhythm anomalies. Implantable devices that measure vascular pressure, vascular blood flow, tissue perfusion, and/or intracardial pressure provide feedback directly to the therapeutic device to improve aberrant rhythm detection.Type: GrantFiled: January 12, 2004Date of Patent: May 5, 2009Assignee: Transoma Medical, Inc.Inventors: Brian P. Brockway, Brian D. Pederson, David G. Benditt
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Patent number: 7097618Abstract: Devices and methods for detecting inadequate tissue perfusion by measuring a parameter other than heart rate such as vascular blood pressure, intracardiac blood pressure, vascular blood flow or tissue perfusion, in addition to or as a substitute for heart rate. Such devices and methods improve the accuracy of determining when and to what degree therapy should be administered to treat inadequate tissue perfusion, such as pre-syncope, syncope, or orthostatic hypotension, particularly in the absence of abnormal cardiac function.Type: GrantFiled: March 9, 2004Date of Patent: August 29, 2006Assignee: Transoma Medical, Inc.Inventors: David G. Benditt, Brian P. Brockway, Richard R. Wilson
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Patent number: 6656166Abstract: A coronary sinus guiding introducer utilized to introduce medical devices, such as electrode leads, into the coronary sinus of a human heart. This guiding introducer contains a precurved distal portion, which curves through an arc of about 50 to 150 degrees. Preferably, the distal portion contains a pair of generally coplanar curves, wherein the arc of the first curve is from about 20 to about 60 degrees and the arc of the second curve is from about 30 to about 90 degrees and wherein the second curve is generally coplanar with the first curve. In an alternative embodiment, the second curve curves out of a plane formed by the first curve from about 15 to about 90 degrees. In addition, preferably the guiding introducer is splittable. Also disclosed is a process for introducing medical devices through the lumen of the precurved, coronary sinus guiding introducer.Type: GrantFiled: August 15, 2001Date of Patent: December 2, 2003Assignee: St. Jude MedicalInventors: Keith G. Lurie, Jean Jacques Blanc, David G. Benditt, Daniel J. Starks
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Publication number: 20020029030Abstract: A coronary sinus guiding introducer utilized to introduce medical devices, such as electrode leads, into the coronary sinus of a human heart. This guiding introducer contains a precurved distal portion, which curves through an arc of about 50 to 150 degrees. Preferably, the distal portion contains a pair of generally coplanar curves, wherein the arc of the first curve is from about 20 to about 60 degrees and the arc of the second curve is from about 30 to about 90 degrees and wherein the second curve is generally coplanar with the first curve. In an alternative embodiment, the second curve curves out of a plane formed by the first curve from about 15 to about 90 degrees. In addition, preferably the guiding introducer is splittable. Also disclosed is a process for introducing medical devices through the lumen of the precurved, coronary sinus guiding introducer.Type: ApplicationFiled: August 15, 2001Publication date: March 7, 2002Applicant: Daig CorporationInventors: Keith G. Lurie, Jean Jacques Blanc, David G. Benditt, Daniel J. Starks
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Patent number: 6312399Abstract: The invention provides exemplary devices and methods for increasing cardiopulmonary circulation when performing cardiopulmonary resuscitation. In one exemplary method, a patient's chest is actively compressed during a compression phase. At least some of the respiratory muscles are stimulated to contract during a decompression phase to cause an increase in the magnitude and duration of negative intrathoracic pressure during the decompression phase. In this way, the amount of venous blood flow into the heart and lungs is enhanced.Type: GrantFiled: May 20, 1999Date of Patent: November 6, 2001Assignee: CPRx, LLCInventors: Keith G. Lurie, David G. Benditt, Todd M. Zielinski, Wolfgang Voeckel, Robert Patterson
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Patent number: 6277107Abstract: A coronary sinus guiding introducer utilized to introduce medical devices, such as electrode leads, into the coronary sinus of a human heart. This guiding introducer contains a precurved distal portion, which curves through an arc of about 50 to 150 degrees. Preferably, the distal portion contains a pair of generally coplanar curves, wherein the arc of the first curve is from about 20 to about 60 degrees and the arc of the second curve is from about 30 to about 90 degrees and wherein the second curve is generally coplanar with the first curve. In an alternative embodiment, the second curve curves out of a plane formed by the first curve from about 15 to about 90 degrees. In addition, preferably the guiding introducer is splittable. Also disclosed is a process for introducing medical devices through the lumen of the precurved, coronary sinus guiding introducer.Type: GrantFiled: May 9, 1997Date of Patent: August 21, 2001Assignee: Daig CorporationInventors: Keith G. Lurie, Jean Jacques Blanc, David G. Benditt, Daniel J. Starks
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Patent number: 6234985Abstract: Exemplary devices and methods for increasing cardiopulmonary circulation when performing cardiopulmonary resuscitation. In one exemplary method, a patient's chest is actively compressed during a compression phase. The diaphragm is then stimulated to contract during a recovery phase to cause an increase in the magnitude and duration of negative intrathoracic pressure during the recovery phase. In this way, the amount of venous blood flow into the heart and lungs is enhanced.Type: GrantFiled: June 11, 1998Date of Patent: May 22, 2001Assignee: CPRX LLCInventors: Keith G. Lurie, David G. Benditt
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Patent number: 6224562Abstract: Provided are exemplary devices and methods for increasing cardiopulmonary circulation when performing cardiopulmonary resuscitation. In one exemplary method, a patient's chest is actively compressed during a compression phase. At least some of the respiratory muscles are stimulated to contract during a decompression phase to cause an increase in the magnitude and duration of negative intrathoracic pressure during the decompression phase. In this way, the amount of venous blood flow into the heart and lungs is enhanced.Type: GrantFiled: November 20, 1998Date of Patent: May 1, 2001Assignee: CPRX LLCInventors: Keith G. Lurie, David G. Benditt
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Patent number: 6001085Abstract: A catheter for insertion in the ostium of the coronary sinus in the right atrium comprised of a main reinforced portion, an intermediate zone portion and a soft tip portion wherein a portion of the catheter is curved in a double curve, wherein the first curve is a first longitudinal curve, wherein the second curve is a second longitudinal curve, wherein the second longitudinal curve is curved in approximately the same direction as the first longitudinal curve and wherein the first and second longitudinal curves are generally coplanar.Type: GrantFiled: December 23, 1997Date of Patent: December 14, 1999Assignee: Daig CorporationInventors: Keith G. Lurie, David G. Benditt, Jeffrey J. Shultz, John David Ockuly, John J. Fleischhacker
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Patent number: 5984909Abstract: A catheter for insertion in the ostium of the coronary sinus in the right atrium comprised of a main reinforced portion, an intermediate zone portion and a soft tip portion wherein a portion of the catheter is curved in a double curve, wherein the first curve is a first longitudinal curve, wherein the second curve is a second longitudinal curve, wherein the second longitudinal curve is curved in approximately the same direction as the first longitudinal curve and wherein the first and second longitudinal curves are generally coplanar.Type: GrantFiled: September 3, 1998Date of Patent: November 16, 1999Assignee: Daig CorporationInventors: Keith G. Lurie, David G. Benditt, Jeffrey J. Shultz, John David Ockuly, John J. Fleischhacker
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Patent number: 5722963Abstract: A catheter for insertion in the ostium of the coronary sinus in the right atrium comprised of a main reinforced portion, an intermediate zone portion and a soft tip portion wherein a portion of the catheter is curved in a double curve, wherein the first curve is a first longitudinal curve, wherein the second curve is a second longitudinal curve, wherein the second longitudinal curve is curved in approximately the same direction as the first longitudinal curve and wherein the first and second longitudinal curves are generally coplanar.Type: GrantFiled: April 1, 1996Date of Patent: March 3, 1998Assignee: Daig CorporationInventors: Keith G. Lurie, David G. Benditt, Jeffrey J. Shultz, John David Ockuly, John J. Fleischhacker
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Patent number: 5643231Abstract: A catheter for insertion in the ostium of the coronary sinus in the right atrium comprised of a main reinforced portion, an intermediate zone portion and a soft tip portion, wherein a portion of the catheter is curved in a compound curve formed by a first and second curve, wherein the second curve may be curved in the same direction as the first curve or out of a plane formed by the first curve.Type: GrantFiled: June 1, 1995Date of Patent: July 1, 1997Assignee: Daig CorporationInventors: Keith G. Lurie, David G. Benditt, Jeffrey J. Shultz, John David Ockuly, John J. Fleischhacker
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Patent number: 5549581Abstract: A catheter for insertion in the ostium of the coronary sinus in the right atrium comprised of a main reinforced portion, an intermediate zone portion and a soft tip portion wherein a portion of the catheter is curved in a double curve, wherein the first curve is a first longitudinal curve, wherein the second curve is a second longitudinal curve, wherein the second longitudinal curve is curved in approximately the same direction as the first longitudinal curve and wherein the first and second longitudinal curves are generally coplanar.Type: GrantFiled: January 12, 1995Date of Patent: August 27, 1996Assignee: Daig CorporationInventors: Keith G. Lurie, David G. Benditt, Jeffrey J. Shultz, John D. Ockuly, John J. Fleischhacker
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Patent number: 5423772Abstract: A catheter for insertion in the ostium of the coronary sinus in the right atrium comprised of a main reinforced portion, an intermediate zone portion and a soft tip portion wherein a portion of the catheter is curved in a double curve, wherein the first curve is a first longitudinal curve, wherein the second curve is a second longitudinal curve, wherein the second longitudinal curve is curved in approximately the same direction as the first longitudinal curve and wherein the first and second longitudinal curves are generally coplanar.Type: GrantFiled: August 13, 1993Date of Patent: June 13, 1995Assignee: Daig CorporationInventors: Keith G. Lurie, David G. Benditt, Jeffrey J. Shultz, John D. Ockuly, John J. Fleischhacker